Definitely a cheaper way to get a lot of the stars.
There aren't really a lot of Satchell Paige cards and the Exhibit can be bought rather easily.
http://www.ebay.com/itm/EXHIBIT-BASE...sAAOSweuxWSmyg
Here's a Jackie Robinson under $30
http://www.ebay.com/itm/1947-66-Exhi...oAAOSwFqJWqABf
If you get the right lots, you can find stars in a lot of cards for as low as $2 each.